s=input().split('-')
x=s[0]+s[1]+s[2]
sum=0
n=0
for i in x:
    n+=1
    sum+=int(i)*n
if (sum%11==10 and str(s[3])=='X') or (sum%11!=10 and str(sum%11)==str(s[3])):
    print('Right')
else:
    if sum%11==10:
        s[3]='X'
    else:
        s[3]=str(sum%11)
    print('{}-{}-{}-{}'.format(s[0],s[1],s[2],s[3]))